1, Click the three dots in the top right corner of an open Chrome window.
2. Hover over “History.”
3. Click the first option on the drop-down menu under “Recently Closed" to open the last window you shut. (If a recently closed window had multiple tabs, the number of tabs will show in the drop-down menu.)
4. Click on “Restore Window.”

参考：https://blog.google/products/chrome/restore-browser-tabs/